IRCT20161216031432N2 IRCT 2018-04-02 No sponser Laser in periodontitis treatment Study of the clinical and microbiologic effects of 940 nm Diode laser as an adjunct to scaling and root planing in treatment of Chronic periodontitis 2017-01-20 anticipated 22 Complete https://irct.ir/trial/24725 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Simple randomization of subjects with random number table, Blinding description: Single blind; participants. N/A Chronic periodontitis. Intervention 1: The control group: The treatment consists of scaling with an ultrasonic device and oral hygiene instructions, including how to brush correctly and use dental floss. Intervention 2: The intervention group: Scaling will be carried out with the use of an ultrasonic device in association with oral hygiene instructions, including correct brushing and use of dental floss. One week after scaling and root planing, 940-nm diode laser beams w. Yes - There is a plan to make this available What will be shared: All data after removal of private information will release via article publication. When: 6 months after publication. To whom: Students and professors Conditions: By written consent of investigators. Where to obtain: Dr. Zohri How to obtain: email online application of the assay. Comments: